Effects of tidal current on pollution load index and potential risk of heavy metals in water column of the Chao Phraya River estuaryKansiri Silrat, Anutsara Yottiam, Patcha Leelakun, Pathompong Vibhatabandhu and Sarawut SrithongouthaiE3S Web Conf., 557 (2024) 01002DOI: https://doi.org/10.1051/e3sconf/202455701002